Littelfuse 209 User Manual

Axial Lead & Cartridge Fuses

2AG > Time Lag > 209 Series

209 Series Lead-Free 2AG, Slo-Blo® (Time-Lag) Fuse

Description

Littelfuse 209 Series (2AG) 350V, Time-Lag (Slo-Blo®) Fuses
are available in cartridge form or with axial leads. This
series provides the same performance characteristics as
its 3AG counterpart, while occupying one-third the space.
Sleeved fuses are available.

Features

PS

E

Agency Approvals

Agency Agency File Number Ampere Range

E10480 250mA - 7A

PS

E

NBK210405-E10480G/H
NBK210405-E10480C/D

NBK210405-E10480E/F

1A - 3.5A

4A - 5A
6A - 7A

250mA - 7A

Additional Information

Datasheet

Resources

Samples

Electrical Characteristic Specifications by Item

Amp

Code

Ampere

Rating

(A)

Voltage

Rating

(V)

Interrupting

Rating

• Inaccordance

• Availableincartridge

Applications

•ElectronicLightingBallasts

Electrical Characteristics for Series

Nominal Cold

Resistance

(Ohms)

with Underwriter’s
Laboratories Standard
UL 248-14

dimensions

• RoHScompliantand

Lead-free

and axial lead form and

with various forming

% of Ampere

Rating

100% 4 Hours, Min.

135% 1 Hour, Max.
200% 3 Sec. Min. ; 20 Sec. Max.

Nominal

Melting

2

t (A2 sec)

I

Opening Time

Agency Approvals

PS

E

.250 0.25 350
.375 0.375 350 1.170 0.580 x x
.500 0.5 350 0.688 1.160 x x
.600 0.6 350 0.477 1.750 x x
.750 0.75 350 0.340 2.950 x x
.800 0.8 350 0.304 3.450 x x

0 01. 1 350 0.210 5.640 x x x

1.25 1.25 350 0.1460 9.80 x x x

01. 5 1. 5 350 0.1077 15.0 x x x
002 2 350 0.0689 30.0 x x x

2.25 2.25 350 0.0567 39.0 x x x

02.5 2.5 350 0.0502 50.0 x x x
003 3 350 0.0383 77.0 x x x

03.5 3.5 350 0.0312 110 x x x
004 4 350 0.0258 148 x x x
005 5 350 0.0186 267 x x x
006 6 350 0.0141 380 x x x
007 7 350 0.0116 464 x x x

© 2013 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 12/19/13

100A @
350Vac

2.410 0.216 x x

Axial Lead & Cartridge Fuses

300

240

Temperature (°C) - Measured on bottom side of board

2AG > Time Lag > 209 Series

Temperature Rerating Curve

Average Time Current Curves

Soldering Parameters - Wave Soldering

280

260

240

220

200

180

160

140

120

100

80

60

40

20

0

0

102030405060708090

Time (Seconds)

Preheat Time

100

110

120

130

140

150

160

170

180

190

200

210

220

Dwell Time

Cooling Time

Recommended Process Parameters:

Wave Parameter Lead-Free Recommendation

Preheat:

(Depends on Flux Activation Temperature)

Temperature Minimum:
Temperature Maximum:

(Typical Industry Recommendation)

100

° C

150

° C

Preheat Time: 60-180 seconds

Solder Pot Temperature:

260

° C Maximum

Solder Dwell Time: 2-5 seconds

Recommended Hand-Solder Parameters:

230

Solder Iron Temperature: 350° C +/- 5°C
Heating Time: 5 seconds max.

Note: These devices are not recommended for IR or
Convection Reflow process.

Specifications are subject to change without notice.

© 2013 Littelfuse, Inc.

Revised: 12/19/13